Ten years make for a mighty cold trail but Sluefoot Sue still finds a clue on the backtrack that fuels her desperate hunt for the deadliest quarry of all. Sue needs to fire up the Clockwork Catfish and find allies no one expected if she means to solve the secret of Treasure Island's Black Spot.

Having the lifelong love and respect of husband and family hasn't prepared her for the deadly agenda of women determined to end inequality by savage means. She suspects a private girls' school goes far beyond teaching social graces.

Even this fearless cowgirl dreads the consequences of re-uniting with a bitter foster child carrying a horrifying grudge. Climb to the Aether on a lunar quest to stop a deadly threat at home — Just don't count on making it back.